<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>alter</title>
</head>
<body>
Alter Form<br>
<form action="alter_deal.jsp" method="post">
name:<%=session.getAttribute("login_name") %><br>
interest:<input name="interest" type="text"><br>
<input name="submit" id="submit" type="submit" value="submit"> 
</form>
<a href="main.jsp">main</a>
</body>
</html>